Speaker



FIG. 1 illustrates a front side perspective view of a speaker employing an ornamental design in accordance with the present invention;

FIG. 2 illustrates a front side view of the speaker of FIG. 1;

FIG. 3 illustrates a back side view of the speaker of FIG. 1;

FIG. 4 illustrates a left side view of the speaker of FIG. 1;

FIG. 5 illustrates a right side view of the speaker of FIG. 1;

FIG. 6 illustrates a top side view of the speaker of FIG. 1; and,

FIG. 7 illustrates a bottom side view of the speaker of FIG. 1.

All features illustrated in phantom line are expressly disclaimed and form no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 